<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    const {
      log: l
    } = console;

    // 使用箭头函数改写下列代码
    // arr.forEach(function (v, i) {
    //   console.log(v, i)
    // })
    const arr = [1, 2, 3];
    
    arr.forEach((v, i) => l(v, i));
  </script>
</body>

</html>